CN101103214A - Linear drive - Google Patents
Linear drive Download PDFInfo
- Publication number
- CN101103214A CN101103214A CN200580035788.9A CN200580035788A CN101103214A CN 101103214 A CN101103214 A CN 101103214A CN 200580035788 A CN200580035788 A CN 200580035788A CN 101103214 A CN101103214 A CN 101103214A
- Authority
- CN
- China
- Prior art keywords
- servo drive
- driving wheel
- master screw
- pinch roller
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
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- 239000002689 soil Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
- Y10T74/18624—Plural inputs, single output
Abstract
The invention relates to an actuator (10) for actuating a device in a linear manner by means of a tangential rod which can be displaced in a longitudinal manner by converting the torque of a motor-driven pinion (32), in particular for a flap or for a valve in the field of heating-ventilation-climatisation (HLK), or fire and smoke protection. According to the invention, a normal threaded rod (24) which can be displaced in the axial direction thereof (L) and which can be cut to an individual length, has a radius (r) which is rotationally secured in the actuator (10). The pinion (32) in connected in a positive fit to at least one drive wheel (36) which is mounted in a freely rotational manner, and an elastic and/or adjustable pressure element (38, 54, 64, 66) which carry out a play-free engagement of drive wheels (36) and the normal threaded rod (24).
Description
The present invention relates to a kind of servo drive that is used for by means of the linear activated a kind of equipment of tangential bar that under the situation of torque of the small gear of the motor-driven driving of conversion, can vertically move, be particularly useful for the valve or the valve in heating-ventilation-air conditioning (HLK), fire-proof smoke-proof field.
Before more than 30 years, just produced and be used for the vehicularized electrical servo drive unit of heating-ventilation-apparatus of air conditioning (HLK equipment) actuator.HLK actuator has ensured the volume flowrate of adjustments of gas economically or liquid, especially empty G﹠W.HLK actuator generally not only comprises drive unit as the unit of compactness, also comprises pressure transducer and regulator, and all these is unified in an instrument the inside.
Ventilation system is used more and more in building, and especially in dwelling house, office building, commercial building and the industrial building, generally it all is used in combination with the fire-proof smoke-proof device.Utilizing the volume flowrate of can rotating air register carrying out to regulate in ventilation equipment plays an important role.Volume flowrate is measured by suitable surveying instrument, such as by Belimo AutomationAG, the NMV-D2M that the unit of the conduct compactness that CH-8340 Hinwil makes is made of drive unit, pressure transducer and regulator gives electronic equipment with transmitting measured values then.
In order to make valve or the motion of the ball valve in the water pipe system in the ventilation system, must use the controlling mechanism of the motor actuated large-area or large volume of lower-wattage.Have only with very large reduction speed ratio and could realize accurate and stable adjusting.For valve revolution or acute angle of ball valve rotation or right angle, the axle of motor needs a lot of circles of rotation.The linear motion of torque conversion of in servo drive, the process of motor being slowed down.
DE 10160056A1 has described the gear train assembly by motor activated, and it is used to activate the valve of heating, heating ventilation and air-conditioning system.The axle that the axle of the worm screw shape formation of motor constitutes to worm screw shape transmission of torque, the system tooth of driving mechanism gear is engaged in the axle of this worm screw shape formation.Rotatable second worm screw has a radially stabilization element, and this is stabilization element and the acting in conjunction of photoelectric sensing apparatus radially.Whole system with axially immovable, the rotation Worm and worm-wheel gearing aim at.
US 5836205 A disclose a kind of have two can synchronous linearly moving tooth bar servo drive, these tooth bars are driven with the cylindrical gears of small gear and the engagement of tooth bar form fit ground in couples by a small gear and four.Tooth bar is produced as special manufacturing, and the system tooth of its system tooth and cylindrical gears is complementary, and this system is corresponding relatively more expensive.
The inventor's task provides a kind of servo drive that starts described type, and its manufacturing and operating cost are low, and are widely used.
According to the present invention, the solution of this task is: can not fix one in servo drive can be by concrete condition cutting to length,, master screw with radius r axially movable at it with reversing, but the driving wheel form fit of a small gear and same free rotary ground supporting ground engagement, and construct flexible and/or adjustable hold-down mechanism, it makes driving wheel and master screw seamlessly mesh.The theme that the special and improved mode of execution of servo drive is a dependent claims.
On market, master screw is having bigger choice aspect length, diameter, material, profile of tooth, spiral shell square and the sense of rotation.But special thread such as double thread screw also can be used as the bulk article of cutting to length and obtain.Simple master screw ratio is as reaching 20 times according to the US 5836205 special tooth bar low prices of producing.Traditional in addition tooth bar has the length of determining according to the different application situation, must be fixed by dissimilar bearings, and this has additionally increased cost.Then opposite according to the present invention, do not meet and use the master screw of length can be fixed on the bearing size that cuts into any needs that can have no problem at any time yet.
The driving wheel of tangential mobile master screw makes the linear motion of the torque conversion that applies by driving mechanism.So have the best and driving pinion form fit ground engagement of driving wheel of the cylindrical gears of single type formation.If the pitch of cylindrical gears equals the n of pitch of driving wheel doubly or 1/n times the time, just can assemble n=1 wherein, 2,3...... without difficulty.
Driving wheel preferably has shell geometrical shape, convex curved that can accurately roll across master screw.Also there is very high flexibility in described thus system when compressing mutually.The master screw that utilizes the nut self-locking with can self-locking according to driving wheel of the present invention, more insensitive to dirt in addition.
Introduce the sidewall that master screw in the servo drive surpasses the upset of housing or base plate, and preferably have in both sides and to pass boring with gap.When the radius r of master screw, the radius of boring is r+ Δ r.Screw rod is flexible the installation in the horizontal like this, but the transverse force restriction of regulation is arranged, and this transverse force restriction is changeable according to the use of servo drive.
The master screw two ends can have releasable and preferred tunable joint for example with the stroke limiter of the form of the fixing nut of lock nut.The band spring fixed mechanism that utilization can be pulled out or the cotter pin of similar known mechanism, utilize the sidewall of upset of housing or base plate as backstop.
The anti-stopper of turning round of master screw plays an important role.The simplest method is exactly by master screw being fixed on the equipment that vertically moves, and this equipment generally can only vertically move and can not rotate.This preferably realizes by releasable mode, for example, with rigidly connected thin plate of master screw or angle section.
The master screw of cutting to length can be at least in the pressing of turning up the soil at interval of inboard and end face axial, this that is to say that the zone of the end face of master screw preferably remains unchanged at this.Under opposite extreme situations, the total length of screw rod can reduce by half.Can make hold-down mechanism vertically moving on screw rod easier like this.For example also can generally use the pinch roller of the outer side surface that simply has projection thus.
Above-mentioned hold-down mechanism can any configuration, slides in principle, but preferably roll.Preferably use at least one in practice, the pinch roller of best two spaced apart settings is realized.These pinch rollers optional structure under the constant situation of master screw recessed around band system tooth or not with the cylindrical shell surface of making tooth.Preferably pinch roller is arranged on the driving wheel opposite.But pinch roller also can be between two driving wheels.
Following several flexible program is especially arranged in practice:
-one driving wheel, a pinch roller.This mode of execution allows the master screw of swing.This must operate by the transverse force restriction, just as what mention, such as realizes by holing, but also can realize by the longitudinal slot of the motion of limitation standard screw rod, particularly its oscillating motion.
-two driving wheels, a pinch roller: if the centre of pinch roller between two driving wheels, it can bring into play optimum effect.The also corresponding situation that is applicable to a driving wheel and two pinch rollers of this point.
The driving wheel of-two pairs of spaced apart settings and pinch roller.This mode of execution is most widely used in practice, and it does not need the transverse force restriction substantially.
Plural driving wheel and/or pinch roller can certainly be used, but the cost-effectiveness relation need be considered.
Also can not use flexible pinch roller according to other mode of execution of the present invention, method is to reserve the line of rabbet joint of same configuration in the base plate of servo drive and cover plate, preferably in the zone of pinch roller and/or driving wheel.Can so construct pinch roller in addition, its have the performance spring action around circular groove.Certainly as long as keep Economy, these single flexible programs can make up mutually.
Advantage of the present invention can reduce following some:
The Worm and worm-wheel gearing of the rotation of the pull bar of the band system tooth that-replacement is special-purpose or complexity can obtain cost master screw low especially, that can buy everywhere on market, and can be simply according to using cutting to length.
The bigger tolerance of-commercial master screw commonly used is reduced to bottom line by compressing of driving wheel, realizes tensile load and pressure load that master screw is higher thus.
-master screw and driving wheel do not have self-locking by combination of the present invention, can manually insert or pull out master screw in case of necessity.
-make dirt receptance be reduced to bottom line by no intermittence, dirt is extruded in continuous columniform rolling.
The quantity of-driving wheel can change according to using.Unique driving wheel and pinch roller are called swing to fixing with having formed a universal joint with very big one dimensional motion degrees of freedom.Two driving wheels have realized that power bigger under the situation of same side loads shifts.
-each servo drive also can use the master screw of two or more corresponding other parts of coupling.
Explain the present invention in more detail by embodiment illustrated in the accompanying drawings, these embodiments also are the themes of dependent claims.Accompanying drawing illustrates:
Fig. 1 is the perspective view of servo drive that cover plate is taken off;
Fig. 2 is the scheme that Fig. 1 has cover plate;
Fig. 3 is the view of transverse force restriction;
Fig. 4 is the view that is resisted against the pinch roller that rebounds certainly on the master screw;
Fig. 5 is the plan view of the incision of Fig. 4.
The servo drive 10 of Fig. 1 comprises the base plate 12 that is configured to rectangle basically.Two connecting plate right-angle bendings of the base plate of making by sheet metal 12, and indistinctly constituted sidewall 14.On pillar 16, fix a cover plate 18 of making by identical sheet metal equally.All installation fishplate bars 20 that have a boring 22 respectively are used for fixing servo drive 10.
The master screw 24 of cutting to length has with gap by 26 sidewalls 14 that penetrate right-angle bending of holing, it axial L, it vertically on can move freely.Boring 26 has formed the transverse force restriction.
Two nuts that are provided with in the zone of the end 30 of the end face side of master screw 24 are formed in the axial L stroke limiter 28 of both sides, such as respectively have a lock nut that does not illustrate to secure the above nut.Two sidewalls 14 have formed the backstop of described stroke limiter 28, and described stroke limiter also can be the fixing cotter pin of spring as previously mentioned.
In base plate 12 and cover plate 18, supporting the small gear 32 of a motor-driven driving, be engaged on to its form fit in the cylindrical gears 34 of protrusion of two driving wheels 36, these two driving wheels can free rotary ground supporting in base plate 12 and cover plate 18.
Fig. 2 shows the servo drive 10 that cover plate 18 is housed.Can see from the front in this figure can be along with axle 44 pinch rollers that rotate freely 38 of its rigidity.Be provided with the line of rabbet joint 54 as hold-down mechanism in base plate 12 and cover plate 18 and substitute leaf spring 40 (Fig. 1), it allows spring action on when pinch roller 38 is sleeved on master screw 24.The line of rabbet joint 54 inregister ground in two plates 12,18 is provided with.Pinch roller 38 at this to constitute with the corresponding shape of driving wheel 36 geometrical shapies, also like this aspect the system tooth.
Only constructed a unique driving wheel 36 according to Fig. 2, it with two pinch rollers 38 in one mutually opposed.Exceed cover plate 18 with driving wheel 36 rigidly connected axles 56.The live axle 60 (Fig. 2) with boring of passing with gap 58 of small gear 32 is this situation equally.
Fig. 2 does not show the anti-stopper 46 of turning round, but it realizes by means of the equipment that translation is moved that also wherein master screw 24 screws in the internal threads, and it is fixing to be used as the stroke limiter 28 of lock nut.
Fig. 3 and 4 shows the view by the sidewall 14 of base plate 12 upsets, and it also has the radial section of master screw 24.Master screw 24 with radius r has with gap and passes this boring 26 with boring 26 coaxially with separation delta r.If different pinch rollers 38 of just constructing its right side with Fig. 2,26 transverse forces that constitute the oscillating motion of master screw 24 of then holing limit.
Fig. 5 shows the pinch roller 38 that leans against with the special tectonic on the master screw shown in the radial section 24.Axle 38 is about symmetry plane E minute surface symmetry.It has the groove 62 of an annular, and this groove 62 extends in the zone of axle 44 always.What form two sheets thus crank arm 64,66, they constituted recessed around outer surface 68.When the pinch roller 38 that single type is constituted was pressed on the master screw 24, cranking arm of two sheets 64,66 opened according to impacting force elasticity respectively, and this point is represented by double-head arrow 70.Pinch roller 38 can two members or many members ground formation in addition.Along plane E in the pinch roller 38 divided into two parts, two halfbodies compress mutually by spring force a kind of.Overcome confining force when compressing, 64,66 elasticity of cranking arm are opened.Fig. 4 shows other flexible program of flexible pinch roller.
Hold-down mechanism in 64,66 the form of cranking arm of two flexible pinch rollers 38, the line of rabbet joint 54 and flexible sheets shown in Fig. 1,2 and 5 can be constructed separately, perhaps can make up mutually.
Claims (10)
1. servo drive (10), be used for the linear activated a kind of equipment of tangential bar that can vertically move by means of under the situation of torque of the small gear (32) of the motor-driven driving of conversion, be particularly useful for heating-ventilation-air conditioning (HLK), the valve in fire-proof smoke-proof field or valve, it is characterized in that: anti-ly in servo drive (10) fix by specific cutting to length with reversing, the master screw (24) that movably has radius (r) at its axial (L), described small gear (32) but with the engagement of driving wheel (36) form fit of at least one free rotary ground supporting ground, and construct flexible and/or adjustable hold-down mechanism (38,54,64,66), this hold-down mechanism makes driving wheel (36) and master screw (24) seamlessly mesh.
2. by the described servo drive of claim 1 (10), it is characterized in that: described driving wheel (36) have the geometrical shape that accurately rolls across master screw (24), around the crooked shell (37) in recessed ground.
3. by claim 1 or 2 described servo drives (10), it is characterized in that: the master screw that stretch out described both sides (24) is in the transverse force restriction that has at least one end face (30) preferably with the form of the boring with radius bigger than master screw (24) (r+ Δ r) in the sidewall (14) in the upset of the housing of servo drive (10) or base plate (12).
4. by at least one described servo drive (10) in the claim 1 to 3, it is characterized in that: described master screw (24) has axial (L) stroke limiter (28) of the form of the fixing cotter pin of the especially lock nut that works in both sides or spring, and the trip limting mechanism is resisted against on the sidewall (14) or housing of upset of base plate (12).
5. by one of claim 1 to 4 described servo drive (10), it is characterized in that: the anti-stopper (46) of turning round that the equipment with can translation the moving structure dihedral or plate shape releasably is connected.
6. by one of claim 1 to 5 described servo drive (10), it is characterized in that: described flexible hold-down mechanism be at least one have the recessed ground recessed system tooth that extends agley or that do not have the system tooth, flat ground or projection ground around the form of pinch roller (38) of shell, wherein said pinch roller (38) is preferably arranged opposed to each other with driving wheel.
7. by one of claim 1 to 6 described servo drive (10), it is characterized in that: each or two driving wheels (36) and the mutual in couples opposed placement of pinch roller (38), wherein two pinch rollers (38) preferably have the leaf spring (40) that common swing is hung.
8. by one of claim 1 to 7 described servo drive (10), it is characterized in that: in base plate (12) and cover plate (18), the line of rabbet joint (54) formation hold-down mechanism that preferably structure is identical in the zone of pinch roller (38) and/or driving wheel (36).
9. by one of claim 1 to 8 described servo drive (10), it is characterized in that: pinch roller (38) is set as hold-down mechanism, the sheet elasticity that they have the groove (62) of an annular and two these grooves of gauge crank arm (64,66), this opens and/or overcome confining force by elasticity when multi-part type is constructed when cranking arm on being pressed to master screw (24) and opens, and brings into play spring action thus.
10. by one of claim 1 to 9 described servo drive (10), it is characterized in that: described driving wheel (36) constitutes one with cylindrical gears (34), itself and small gear (32) form fit ground mesh, the pitch of wherein said cylindrical gears (34) be the n of pitch of driving wheel (36) or 1/n doubly, n=1 wherein, 2,3.......
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1448/04 | 2004-09-02 | ||
| CH14482004 | 2004-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101103214A true CN101103214A (en) | 2008-01-09 |
Family
ID=35197855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580035788.9A Pending CN101103214A (en) | 2004-09-02 | 2005-08-22 | Linear drive |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070295125A1 (en) |
| EP (1) | EP1812732A1 (en) |
| CN (1) | CN101103214A (en) |
| WO (1) | WO2006024183A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809322A (en) * | 2012-08-22 | 2012-12-05 | 石家庄博广热能科技有限公司 | Portable soot cleaning device for tubular heat exchanger |
| CN103016628A (en) * | 2011-09-23 | 2013-04-03 | 周世勃 | Special transmission device for single-degree-of-freedom sun-tracking system |
| CN103241368A (en) * | 2012-02-10 | 2013-08-14 | Eads飞机设计有限公司 | Linear actuator and aircraft component comprising same |
| CN107826282A (en) * | 2017-10-31 | 2018-03-23 | 保定申辰泵业有限公司 | A kind of High Precision Automatic filling apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2134422A2 (en) * | 2007-04-12 | 2009-12-23 | Belimo Holding AG | Drive system for a fire protection flap |
| JP2012533439A (en) * | 2009-07-17 | 2012-12-27 | サマック，ロバート，エー | Automatic adjustable machine tool workpiece mounting device |
| US9062893B2 (en) | 2011-05-13 | 2015-06-23 | Johnson Controls Technology Company | Speed adjustment of an actuator for an HVAC system |
| WO2016106327A1 (en) | 2014-12-22 | 2016-06-30 | Vermeer Manufacturing Company | Positionable carriage assembly |
| CH713390A1 (en) | 2017-01-27 | 2018-07-31 | Belimo Holding Ag | Linear drive and method for mounting such a linear drive. |
| FR3080234B1 (en) * | 2018-04-13 | 2021-09-24 | Mmt ag | COMPACT LINEAR ELECTRIC ACTUATOR WITH ELASTIC DRIVE CHAIN |
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2005
- 2005-08-22 WO PCT/CH2005/000487 patent/WO2006024183A1/en active Application Filing
- 2005-08-22 CN CN200580035788.9A patent/CN101103214A/en active Pending
- 2005-08-22 US US11/574,533 patent/US20070295125A1/en not_active Abandoned
- 2005-08-22 EP EP05771354A patent/EP1812732A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016628A (en) * | 2011-09-23 | 2013-04-03 | 周世勃 | Special transmission device for single-degree-of-freedom sun-tracking system |
| CN103241368A (en) * | 2012-02-10 | 2013-08-14 | Eads飞机设计有限公司 | Linear actuator and aircraft component comprising same |
| CN103241368B (en) * | 2012-02-10 | 2017-04-26 | Eads飞机设计有限公司 | Linear actuator and aircraft component comprising same |
| CN102809322A (en) * | 2012-08-22 | 2012-12-05 | 石家庄博广热能科技有限公司 | Portable soot cleaning device for tubular heat exchanger |
| CN102809322B (en) * | 2012-08-22 | 2014-06-18 | 博广热能股份有限公司 | Portable soot cleaning device for tubular heat exchanger |
| CN107826282A (en) * | 2017-10-31 | 2018-03-23 | 保定申辰泵业有限公司 | A kind of High Precision Automatic filling apparatus |
| CN107826282B (en) * | 2017-10-31 | 2019-09-10 | 保定申辰泵业有限公司 | A kind of High Precision Automatic filling apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1812732A1 (en) | 2007-08-01 |
| US20070295125A1 (en) | 2007-12-27 |
| WO2006024183A1 (en) | 2006-03-09 |
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